Testing device for water systems



April 18, 1933. E. KENNEDY TESTING DEVICE FOR WATER SYSTEMS Filed Sept. 20, 1950 t W a e E c F e Patented Apr. 18, 1933 Application filed September 20,?1930. seria1no.4s3,ee2.jj

The present invention relates to improvemerits in testing devices for water systems, and has for an object to provide certaln 1111-.

provements over the testing device for water systems described and shown in my prior Patent No. 1,155,821, granted October 5, 1915. It is another object of the invention to pro vide an improved testing device which is temporarilysecured in the pipe joint and which, besides performing its customary testlng functions will furthermore, act as a stop and support for the interfitting pipe section, acting to bring this pipe section to a correct position and for retaining it in such correct position during the filling of the joint.

A further, object of the invention resides in providing an improved testing devlce, which will act as a stop and support for the pipe during the jointing operation, and which 0 subsequent to its removal will allow ample space for the longitudinal expansion and contraction of the interfitting .pipe section.

With the foregoing and other objects in View, the invention will be more fully described hereinafter, and will be more particularly pointed out in the claim appended hereto.

In the drawing, wherein like symbols refer to like or corresponding parts throughout the several views, 7

Figure 1 is a vertical section taken through a pipe joint with the improved testing device.

Figure 2 is a similar view with the testing device removed, and

Figure 3 is a view similar to Figure 1 but showing a slight modification.

Referring more particularly to the drawing 5 designates a temporary testing plug,

which is provided with external screw threads to threadedly engage the internal threads 6 upon pipe union 7 The arrangement is such that the testing plug 5 may be screwed up into its place in the union and removed downwardly therefrom after the pipe section 8 has been put in place. I

The upper end of the testing plug flange 9 constitutes a stop and support for the end of the inserted pipe section 8, while the joint connection is being packed. This joint may include forinstancehthe lead 1'1 and the waste or fiber 10. The packing is con? '7 fined in place as by the use of a cap plate 12 removably securedin placebyboltsorother fastenings 13' passing throu h the pla'te 12 and through an out-turned ange1=14 on the'i V v pipe union 7. Preferablytheplate'is 'shoul dered asindicated at 15 to fitwithi n-the pipei union whereby to center'the'same; Thpip union is enlarged, as at 16to provideaipa'ck ing gland or'chamber and is constricted, as indicated at 17 for forming an inner end'walll forthis chamber. The innerend of the-pipe 7 section 8 is fitted into the constricted pore tion 'ofthe joint. A fluid testing pipe com] prising a horizontal section 18 and"a" ver't ical section 19 united by an elbow 20 is shown as threaded in a depending boss 21' of the a plug 5 and extending out through a threaded opening22 of the joint memberZ. l I L The packing referred to includes the usual". calking. 5" In the use of thedevice, the plug 5 is first put in place, the pipe section 8 is'then fitted to the jointm'ember 7 untilth'e inneriend li comes in contact with the flange 9 which determines the'correct' position of the pipe'section 8 and acts'as a stop and a support therefor. V The joint material is then filled, put

in the chamber 16 and the plate 12 finally put 9.-

in place and secured. After the system has been tested the plug 5 is removed and the space between the inner end of the pipe sec tion 8 and the thread 6 gives ample room for longitudinal expansion of the pipe section. 3.5.; g I

After the testing device is'removed a plug 23 may be inserted in the opening 22, as indicated in Figure 2.

Referring to Figure 3 theparts are the same as explained in Figure 1 with the ex 9- ception that the beveled end 24 is provided upon the flange 9 ofthe testing plug 5 which end engages the end of the pipe section 8. This beveled end will have a tendency to very accurately center the pipe section 8 and 5 1 to bring the pipe section to a. correct axial position before the operation of filling the joint is begun. e 7

It will be noted that the unthreaded sec tion of the wall or flange 9 of the testing de} 9.

r5 7 vice is spaced from the Wall of'the joint memher to provide an annular chamber,. and that the end of pipe 8 extends inwardly beyond: 7

' packing 10,; Thus, any leakage betweenthe s're nd of pipe 8 andthe abutting'end of the flange --9 is directed away. from the packing member. '7

v 10 It is-"obvious'that Various changes and T i 7' f modifications may be made in-thedetails-of V constructionand design of the abovespecifii, V cally described embodimehto'f this invention v 7 without departingifrom the spirit thereoi Y ls's uch changesandnnodifications being re- 7 Y i jstricted onilyjbyathe scope: ofathie-following 1se l;aiIned:-is: 1c; testing-device for watersystems, a.

V jointmm-berhaving ai -intermediate section of; diametrically reduced diameteriinternally threaded at; one1end,;the other end-of: said jo n member being; adapted to receive the.

end of a'pipeprojecting into the joint mem- Y her-beyond.aqpackinggland between said piipe 'fifletion-and the; Wadi. of the jointmem- I V bQL, said vprojectinglend 0f the pipe section I I beingspaced ,from the-fwallofi saidred-uced 1 section of the jointfmernberfandj a-testin'g 3 6 device of cap shaped form shaving: external H threadsatoneof its ends removably engagedwith the threads-of said reducedsection of joint; member and.- adapted to, abut against theend of said pipe section to support rlatteridi ringjpackingf ofthejoint'. V

hereto? 7 v {(EDWARDJKENNEEY; Y 1 

